Consider an omnidirectional mobile robot with a ring of twelve ultrasonic sensors (each with an opening angle of 30o) that are fired sequentially. Calculate the slowest scan rate in Hz (i.e. number of full 360o scans per second) if the furthest object of interest is 4m away at any given time. Give your answer to 2 decimal places. Assume the speed of sound in air is 343 m/s.

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A: Answer Let T denotes the temperature if the air. The speed of sound v0 in the air as a function of…

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Q: How much faster does sound travel on a hot summer day, 40 °C, than on the coldest winter day, -40…

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Q: If a source of sound moves toward an observer who is at rest, would the observer hear a higher or…

A: The change in the pitch heard when a vehicle sounding a horn approaches and recedes from an observer…

Q: How much more intense is sound at 40dB than sound at 0dB?

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Q: Sound wove is propogoting in air wth 400 e froqnoy. he distance covered by 2 rorefactions and 2…

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Q: A sound wave travelling in a dense medium has a frequency of 20 KHz and a wavelength of 40 cm. What…

A: Write the expression for the speed of the waveform. Here, n represents the frequency and λ…

Q: At what angle does the maximum range occur?

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Q: You are on a boat in a fog and know there are cliffs ahead of you somewhere, but you cannot see…

A: Given, The total time of sound travelling is 20.0 sec

Q: Why does sound travel fastest in solids and slowest in gasses?

A: Speed of sound: The speed of sound is the distance travelled by the sound wave per unit of time.…

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Q: A coin is dropped down to a wishing well with a depth X and 5 sec later, the sounds of the splash is…

A: As per Bartleby rules, we can only answer one question or three subparts of a question. So, I am…

Q: A fish finder uses a sonar device that sends 20,000-Hzsound pulses downward from the bottom of the…

A: Given data The frequency of the sonar device is f = 20000 Hz. The maximum depth is given as d = 85…

Q: Lets assume that we have a light source that emits only at 3000 À (wavelength in vacuum) and we are…

A: Given : Wavelength (λ) = 3000 A = 3000 x 10-10 m

Q: The SOUND waver ferels width sfeenof 41om/s. If is 18 4 cm Find the frequenry ofcome

A: Given data :   Wave length   =   λ    Speed of sound   =   V        To find :         Frequency

Q: ue is soundec =y of 2 Hz is he ed (decreasing

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Q: The speed of sound in air at 20∘C is 344m/s. What is the wavelength of a sound wave with a frequency…

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Q: How much more intense than the threshold of hearing is a sound of 10dB? 30dB? 60dB?

A: The expression for the intensity is given by,

Q: If you observe a 6.0 second delay between a flash of lightning and its thunder, about how far away…

A: Given : t=6 sec v=343 m/s d=?

Q: Discuss the conditions for interference to occur.

A: In order to obtain interference, the following conditions should be satisfied.

Q: Determine the magnitude of the Fourier transform in milliunits of the function t³e-1.1tu(t), for a…

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Q: So, if red light has a wavelength of 650 nm • And green light has a wavelength of 550 nm • How fast…

A: Given, Red light has a wavelength 650nm Green light has a wavelength 550nm

Q: Rachel watches a thunderstorm from her window. She sees the flash of lightning bolt and begins…

A: Known values are speed of sound = 340 m/s and time to reach sounds of thunder = 5.0 s. 1. Unknown is…

Q: A ball is dropped from the top of an abandoned well. Exactly 6 seconds later, the sound of the bal…

A: initial velocity of the ball = 0 mslet the time taken by the ball to fall = t Let the time taken by…

Q: You shout the word hellointo an idealized echo tube. Five seconds later, the helloreturns to your…

A: Given Speed of sound = 340 m/s Time taken by the echo to return = 5 sec.

Q: Light travels at a speed of about 3×10; m/s. How many miles does a pulse of light travel in a time…

A: Given: Speed of light,c=3×108 m/s Time, t=0.1 s As velocity, v=dt Plugging value of v and t we get,…

Q: On a day when the speed of sound is 344 m/s, Tom hollers and hears an echo 2.4 seconds later. How…

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Q: You have a 8 MHz sound wave moving at 344 m/s. If the frequency of the wave is reduced to 4 MHz, how…

A: Given that:- Frequency of the wave =8MHz Speed of wave=344m/s

Q: A man standing 300m in front of a cliff fires a cannon. After how many seconds later will he hear…

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Q: Which is louder: a 10 inch speaker with a 0.25 inch excursion or a 5 inch speaker with a 1 inch…

A: The loudness of the speaker depends on the amplitude. The amplitude is the measurement of the…

Q: A stationary bat sends a sound wave that travels at 344m/s. How much time will it take fu. the sound…

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Q: of a flying saucer. While the Horn es north at 580 mph with respect to speed of the saucer with…

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Q: For very light traffic, we know that increased traffic density does not appre- ciably reduce a car's…

A: The traffic density is calculated for each recorded count by dividing the vehicle count by the…

Q: Catrin stands between two speakers, both emitting a tone of middle-C (262 Hz). Thenone of the…

A: frequency of each speaker (f) = 262 HzSpeed of sound (v) = 760 mpH = 760 ×1609.43600 ms= 339.75 ms

Q: Knowing that the speed of sound on a particular day is 340ms', Luke calls COO-EE from a lookout…

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Q: How do the intensities of a rock concert at 120 dβ compared with a normal conversation of 60 dβ?

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Q: If the video is shot at 260 frames per second, how many wing beats does the dragonfly perform per…

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Q: A bat’s squeak takes 0.146 s to return after reflecting off a moth. How far away is the bat from the…

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Q: How much more intense is sound at 40dB than sound at 30dB?

A: The intensity of a 40-dB sound,

Q: A spectator at a parade receives an 889 Hz tone from an oncoming trumpeter who is playing an 879 Hz…

A: Using Doppler's effect: When observer is stationary and source is moving towards the observer, then…

Q: Find the Doppler frequency of the reflected wave by the cloud moving 14m/s in the direction of the…

A: Speed of radio waves = 3×108 msSpeed of aircraft (v') = 250 kmhrSpeed of cloud (v'') = 14…

Q: a ball dropped into well with a velocity of 3.28 ft ft/s After 7 sec sound of plash is heard.…

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Q: A baseball fan sitting in the cheap seats is 150 m from home plate. how much time elapses between…

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Speed of light

The speed at which the light travels in a vacuum is unbiased for both the source and inertial frame of reference of the observer. This was postulated by the physicist, Albert Einstein, by observing the theory of electromagnetism of Maxwell. Also, there was no evidence for the luminiferous aether, that is, the medium for the propagation of light where the electromagnetic field exists.